MEXICO, Mexico City, silver medal, 1971, Mexico Numismatic Society / 1725 D 8 reales Royal of Luis I, NGC MS 68 DPL, "top pop" in the NGC census. Grove-1104a. Struck by the Mexico City Mint for the Mexico Numismatic Society to commemorate several historical Mexican coinage designs. Frosty and bold center with mirror outer fields, a little toned around the edges, tied with four others for finest known in the NGC census.